Analog Devices has a series of 24 bit A/D chips that have on-board current
generators and amplifiers for RTDs and strain gages. They are AD7701 to
AD7714 the last time I looked. These chips all have serial interfaces so
are pretty easy to use. Prices vary, but are US$25 or cheaper in singles.

Regards, Jim Ham
At 08:16 AM 11/11/97 -0400, you wrote:
>Does anybody have experience with interfacing load cells and thermocouples
>to microprocessors? And does anybody know where to find practical
>schematics about it on the internet?
>
>Albert Smulders
>InSAD - Encarnacion, Paraguay
>insad@itacom.com.py
>
>
Jim Ham, Porcine Associates
(415)326-2669 fax(415)326-1071
"http://www.porcine.com"